select

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink">
  <option value="coffee">Coffee</option>
  <option value="water">Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

autofocus, name

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink" autofocus>
  <option value="coffee">Coffee</option>
  <option value="water">Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

disabled

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink" disabled>
  <option value="coffee">Coffee</option>
  <option value="water">Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

size

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink" size="3">
  <option value="coffee">Coffee</option>
  <option value="water">Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

option-disabled

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink">
  <option value="coffee">Coffee</option>
  <option value="water" disabled>Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

option-label

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink1">
  <option label="Coffee">CoffeeCoffeeCoffeeCoffee</option>
  <option label="Water">WaterWaterWater</option>
  <option label="Tea">TeaTeaTeaTea</option>
  <option label="Cola">ColaColaColaCola</option>
</select>
<select name="drink2">
  <option label="Coffee" value="coffee">CoffeeCoffeeCoffeeCoffee</option>
  <option label="Water" value="water">WaterWaterWater</option>
  <option label="Tea" value="tea">TeaTeaTeaTea</option>
  <option label="Cola" value="cola">ColaColaColaCola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>

option-selected

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8"/>
  <title>test</title>
</head>
<body>
<form action="atest.html" method="get" >
 <select name="drink">
  <option value="coffee">Coffee</option>
  <option value="water" selected>Water</option>
  <option value="tea">Tea</option>
  <option value="cola">Cola</option>
</select>
 <input type="submit" value="Submit">
</form>
</body>
</html>